发明名称 |
Magnetic disk drive with parameter setting |
摘要 |
Embodiments of the invention are directed to setting optimum FIR filter coefficients. In one embodiment, a POR (Power On Reset) control block acquires temperature data from a thermistor. If the temperature is the first to have been detected as falling within a low temperature range, a filter coefficient determining block in a read/write channel determines filter coefficients of a FIR filter by using the signal acquired from the magnetic disk. The determined filter coefficients are set to the FIR filter. If the temperature data does not satisfy the above-mentioned condition, filter coefficients registered in a filter coefficient table are set to the FIR filter.
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申请公布号 |
US7136240(B2) |
申请公布日期 |
2006.11.14 |
申请号 |
US20050050397 |
申请日期 |
2005.02.02 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
YOSHIDA NOBORU;TANIGUCHI MASATO |
分类号 |
G11B20/10;G11B5/02;G11B5/09;G11B5/40;G11B20/14;G11B33/00;G11B33/14 |
主分类号 |
G11B20/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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